... /SL-280 Features:· The Galilean-type magnification system provides the 10X, 16X and 25X three magnification (standard configuration) and 6X, 10X, 16X ... -280S:3-STEPSL-280: 5-STEP Eye piece12.5×Total magnification Ratio10×, 16×, 25×(standard configuration)6×,10×, 16×, 25×,40 ...